I carry two bodies when working events, and try to keep the time coordinated between them so I can upload the files to the same folder, and sort them by time taken in Bridge. It's a great idea, but for some reason it does not seem to work that well, and I have not been able to work out why.

BTW About two years ago we extended our Daylight saving period by a couple of weeks at each end, and not being an early riser, I love it.

Hmm. What doesn't work well? I do this with reasonable success (two bodies, sort in bridge by date created). The camera clocks' times do drift; I need to manually check and sometimes sync their time settings each day.